Answer:
1.24 %
Step-by-step explanation:
500 * x * 7 = 43.49
x = 43.49/(7*500) = .0124 1.24 %
Vanessa can make 5 portions
Answer: 
Step-by-step explanation:
The formula for area of a triangle is 
Now we have to isolate for w.
First multiply by the 2 which is the reciprocal of 1/2 to cancel it out.

Now divide by h to isolate w.
Answer:
60 ft, 7.5 ft 67.5 ft
Step-by-step explanation:
1. 5*12=60 ft
2 5*3=15 15/2=7.5 ft
3 60+7.5=67.5 ft